A little over priced but a nice lens
Ive no vesting interest in this offer, merely the same lens (in type I or II) in brick or web shops runs 300 to 450 GBP in UK, depending on condition, but not seen a perfect one for sale for a while.
They are tracking Leitz lens prices, if you can get one cheaper well and good.
A Cosina single coated 35mm /1.4 is similar in £ and a modern lens but not LTM, think collectors are inflating the old Canons, as well as D camera adapters, life is hard if you want an all Canon kit.
Note oil on aperture blades is good on a rangefinder lens as long as it is not fogging the glass, the blades can gall if left dry.